Background

Markup Validator Web Service

Interface applications with the Markup Validator through its experimental API. This is version 0.2, dated May 2007. For a history of the format, see Change Log.http://validator.w3.org/docs/api.html

To call this service you’ll need to make an HTTP request for http://validator.w3.org/check?output=soap12&uri= with your appended URL. The parameter output tells the API we want a SOAP 1.2 response, which is in XML format. If you remove the parameter, then you will receive an HTML response.